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Looking to do my first tranny fluid change on an 06 with allison tranny. Where can I get instructions and pics? Fluid recommendations and filter numbers?
 

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I Found Something On How To Flush The Tranny Even At Home. It Had Pics And Varbal Instructions. I'll Try To Find It Again
 

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CALLED THE "HOOT" METHOD:previous posts indicate: Stock shallow pan capacity-7.4 qts when drained.
Large pan capacity-7.4 qts. + 3.2 qts.=10.6 qts.
Total capacity-(dry system) shallow pan=12.7 qts.
Total capacity-(dry system) deep pan=15.9 qts.

When I drained I measured approximately 8.2 quarts (including residual fluid in factory pan, oil out of spin on filter, and oil that ran out when pulling suction filter and disconnecting transmission line.


Parts Needed:


• Fluid four to five gallons
• Spin-on filter


Tools Needed:

1. Two feet of 5/8 heater hose
2. 13mm & 15mm socket, and 3/8 ratchet or equivalent
3. Torque wrench- 3/8”
4. Empty three gallon containers—2 ea
5. Safety Glasses
6. Plenty of rags
7. Very small screwdriver



Procedure:

Remove and replace spin on filter—prime if you like.
Don’t forget to transfer magnet from old to new filter, wipe magnet very clean before installing in new filter.

Keep track of what you drain out of the trans. This will come into play later.


Install drain plug and tighten to 25 foot pounds.

Pour approximately 11 quarts of oil in transmission.

Disconnect upper line from trans cooler at the transmission.
These lines are on the passenger side of the transmission, near the torque converter.
The lines are also identified on the side of the transmission

Quote from Hoot: “In case you haven’t seen the Jiffy-Tite style connector before: Slide back the plastic cover over the c-clip-shaped spring, then use a small screwdriver to pop the spring out of it’s groove. KEEP A FINGER ON THE SPRING AS YOU DO THIS, because those springs love to go flying off into some dark hole where you’ll never find it. Once the spring is out, just pull and wiggle on the line until it comes out of the fitting. As soon as you have the line out you can put the spring back into its groove so you don’t lose it-the line will snap right back into place when you’re done, even with the spring there. Be careful not to damage the o-rings when re-installing.”

Attach the two foot hose to the line you just unhooked and run into your other container. Make sure to push the hose on far enough to go past the ridge in the line. Have one person hold the hose while another starts the truck (unless you have remote) and a third person pour oil in the filler tube.

Turn the truck on and off until you run about one and a half gallons out of the line.

You will have empty containers (if you bought the one gallon size) that you can set inside of your second container, which you can run the hose directly into to measure your progress. Be careful the oil comes out pretty fast.

At this point check how much oil you drained initially and how much you drained in the flush. Subtract how much you drained from how much you added and shoot for a difference of 3.2 quarts. In other words you want 3.2 quarts more in the transmission then you drained out. If you have too much in the transmission run a little more out of the cooler line.

Once you are satisfied the oil level is close, reconnect the cooler line and make sure the line is firmly attached.

You should have the c-clip back in its original position before reconnecting the line.

When reconnecting the line it will “click” in position and may squirt you in the face with a touch of oil.

Start truck and look for leaks, then run the transmission through the gears a few times.

Put truck back in park and check level with dipstick. Should be full cold-if not add fluid.

Drive the truck enough to get the transmission warmed up and then check again-should be to full hot mark.
 

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I Would Use Transynd Or Torque Drive Both Synthetic. Allison Has A New Bulliten Out About 06 And Newer To Use Dexron Vi Or Better!
 

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There really is no need to do the HOOT method unless you are wanting to swap to sythetic.

Just pull the plug, take the spin on off, transfer magnet to new spin on, reinstall drain plug and new filter and fill. It will take 7.5-8 quarts. Use a actually Allison brand filter as the wholes are in a little different location.

Heres where i get my filters: Merchant Automotive : Duramax and Allison Specialists - Filters, Fluids and Pans

Also just make sure your fluid is DExtron VI.
 

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Discussion Starter #6
Is there an internal filter that needs to be changed requiring the tranny pan to be dropped?

Picked this 06 up a few months ago and want to change ALL fluids. So instructions on doing the tranny and transfer case would be great.
 

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Discussion Starter #8
ok, well I can handle the change from the sounds of it. Only question I have is where do you put the trany oil back in? throught the dipstick?
 

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I Would Use Transynd Or Torque Drive Both Synthetic. Allison Has A New Bulliten Out About 06 And Newer To Use Dexron Vi Or Better!
Is there any reason to use or not to use Torque Drive in the tranny for an '02 GMC 6.6L Allison 5 spd.?
 

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where is this magnet you guys are talking about because when i bought my truck i put a new spin on filter on and there was no magnet:mad:
 

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I Would Use Transynd Or Torque Drive Both Synthetic. Allison Has A New Bulliten Out About 06 And Newer To Use Dexron Vi Or Better!
Is there any reason to use (or not to use) Torque Drive in the Allison 5spd of my '02 Duramax?
 

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Mookie- the original spin on comes with a magnet laying around the hole where the filter stud goes into the filter--when changing you are to clean it off and transfer it to the new filter every time---looks like someone has prob thrown yours out somewhere along the line--:rolleyes:
 

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I Was At Rhe Allison Shop Today They Are 3.50 For The Magnet
 

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Just an FYI, pulled this off of Allison's website:

Q. Automatic Transmission Fluid (ATF) - Can I use synthetic fluid?
A. Any fluid that meets DEXRON III requirements is suitable for use in the Allison 1000 Series™. Always verify that the container reads DEXRON III, regardless of whether it is mineral-based or synthetic.
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Q. Automatic Transmission Fluid (ATF) - Can I use TranSynd fluid?
A. TranSynd is a fully synthetic transmission fluid available from Allison Distributors/Dealers or at GM dealers. TranSynd is a licensed DEXRON III product and has been extensively tested by Allison Engineering in a broad range of Allison products. While TranSynd was developed mainly to meet the harsh operating conditions of heavy-duty transmissions in severe operating conditions like transit buses, its benefits translate to the pickup truck market.
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Q. Automatic Transmission Fluid (ATF) - What type of Transmission fluid can I use?
A. Transmission fluids licensed by General Motors to use the trademark DEXRON III are required in the Allison 1000 Series™ transmission.
 

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I talked to the local Allison dealer....He stated there is no reason to do the "Hoot" method even if your replacing with synthetic. He said synthetic is compatible and that the amount left in the torque converter is not going to matter....
 

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I talked to the local Allison dealer....He stated there is no reason to do the "Hoot" method even if your replacing with synthetic. He said synthetic is compatible and that the amount left in the torque converter is not going to matter....
What did the dealer have to say about the old contaminated oil that is still in the torque converter,and the polluting it will do to the new expensive synthetic oil?

Did he explain some mysterious method whereby the old non-synthetic oil will somehow become clean,fresh synthetic oil?

Sounds to me like a dealer that is looking for a excuse to take the easy way out.
 

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What did the dealer have to say about the old contaminated oil that is still in the torque converter,and the polluting it will do to the new expensive synthetic oil?

Did he explain some mysterious method whereby the old non-synthetic oil will somehow become clean,fresh synthetic oil?

Sounds to me like a dealer that is looking for a excuse to take the easy way out.
He is the service manager and hasn't seen any benefits from a complete flush. Hasn't seen any service failures from not flushing the entire system...He said most Allisons coming in for repairs are pushing 500K miles without any problem. With Maintenance schedule of changing tranny fluid ever 50K I should expect a long life from my tranny...
 

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He is the service manager and hasn't seen any benefits from a complete flush. Hasn't seen any service failures from not flushing the entire system...He said most Allisons coming in for repairs are pushing 500K miles without any problem. With Maintenance schedule of changing tranny fluid ever 50K I should expect a long life from my tranny...
No doubt you and he are right about YOUR truck,but those of us who have bought used trucks with 100K or more on them and don't know anything about the maintenance schedule or the amount of abuse placed on our trucks by the previous owner(s) need to know everything in the trans is fresh and clean with no shavings,burnt oil,or other problems.
 
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